(1)Ihe mkpuchi Polyethylene (XLPE) nke ejiri obere anwụrụ ọkụ kpuchie:
A na-emepụta ihe mkpuchi XLPE site na iji polyethylene (PE) na ethylene vinyl acetate (EVA) mee ihe dị ka matrix ntọala, yana ihe mgbakwunye dị iche iche dịka ihe mgbochi ọkụ na-enweghị halogen, mmanụ, antioxidants, wdg, site na usoro njikọta na pelletizing. Mgbe emechara nhazi radiation, PE na-agbanwe site na nhazi molekul dị larịị gaa na nhazi akụkụ atọ, na-agbanwe site na ihe thermoplastic gaa na plastik thermosetting na-enweghị ike ịgbaze.
Eriri mkpuchi XLPE nwere ọtụtụ uru ma e jiri ya tụnyere PE thermoplastic nkịtị:
1. Mmeziwanye iguzogide mgbanwe okpomọkụ, mmeziwanye ihe onwunwe igwe na okpomọkụ dị elu, na mmeziwanye iguzogide mgbawa nrụgide gburugburu ebe obibi na ịka nká okpomọkụ.
2. Mmezi kemịkalụ na iguzogide ihe mgbaze, belata mmiri oyi, na ihe onwunwe eletriki na-adịgide. Okpomọkụ ọrụ ogologo oge nwere ike iru 125°C ruo 150°C. Mgbe emechara nhazi njikọ, enwere ike ịbawanye okpomọkụ sekit dị mkpirikpi nke PE ruo 250°C, na-enye ohere maka ikike ibugharị ugbu a dị elu karịa maka eriri ndị nwere otu ọkpụrụkpụ.
3. Eriri XLPE nke e ji ihe mkpuchi kpuchie na-egosipụtakwa ezigbo ihe eji arụ ọrụ, mmiri anaghị amị, na ihe ndị na-eguzogide radieshon, nke na-eme ka ha dabara adaba maka ọtụtụ ọrụ, dịka waya dị n'ime ngwa eletriki, ụzọ moto, ụzọ ọkụ, waya njikwa akara voltaji dị ala maka ụgbọala, waya locomotive, waya ụgbọ ala, eriri igwe na-egwupụta ihe nke ọma na gburugburu ebe obibi, eriri ụgbọ mmiri, eriri 1E maka ụlọ ọrụ ike nuklia, eriri ọkpọkọ a na-etinye n'ime mmiri, na eriri nnyefe ike.
Ntuziaka dị ugbu a na mmepe ihe mkpuchi XLPE gụnyere ihe mkpuchi eriri ike PE nke na-ejikọ site na radieshon, ihe mkpuchi ikuku PE nke na-ejikọ site na radieshon, na ihe mkpuchi polyolefin nke na-egbochi ire ọkụ nke na-egbochi radieshon.
(2)Ihe mkpuchi Polypropylene (XL-PP) nke ejiri Cross-Linked:
Polypropylene (PP), dịka plastik nkịtị, nwere ihe ndị dị ka ibu dị mfe, ọtụtụ ihe eji emepụta ihe, uru dị na ya, ezigbo iguzogide nchara kemịkalụ, ịdị mfe ịkpụzi ihe, na imegharị ihe. Agbanyeghị, o nwere oke dịka ike dị ala, enweghị ike iguzogide okpomọkụ, nnukwu mgbanwe mbelata, enweghị ike iguzogide mmiri, obere okpomọkụ, na enweghị ike iguzogide okpomọkụ na ịka nká oxygen. Mmachi ndị a egbochila ojiji ya na ngwa waya. Ndị nchọpụta anọwo na-arụ ọrụ iji gbanwee ihe polypropylene iji melite arụmọrụ ha n'ozuzu, na radieshon cross-linked modified polypropylene (XL-PP) emeriela oke ndị a nke ọma.
Waya XL-PP nke e ji ihe mkpuchi kpuchie nwere ike iru ule ọkụ UL VW-1 na ụkpụrụ waya UL nke 150°C. N'ime ngwa waya bara uru, a na-agwakọta EVA na PE, PVC, PP, na ihe ndị ọzọ iji gbanwee arụmọrụ nke oyi akwa mkpuchi eriri.
Otu n'ime ihe ọghọm nke radieshọn cross-linked PP bụ na ọ gụnyere mmeghachi omume asọmpi n'etiti nhazi nke otu njedebe ndị na-enweghị afọ ojuju site na mmeghachi omume mbibi na mmeghachi omume njikọ-cross-link n'etiti molekul ndị a kpaliri na nnukwu molekul free radicals. Ọmụmụ ihe egosila na oke nke mmebi na mmeghachi omume njikọ-cross-linked na PP radieshọn cross-linking bụ ihe dị ka 0.8 mgbe ejiri radieshọn gamma-ray. Iji nweta mmeghachi omume njikọ-cross-linked dị irè na PP, a chọrọ itinye ndị na-akwalite njikọ-cross-linked maka radieshọn cross-linking. Na mgbakwunye, ọkpụrụkpụ njikọ-cross-linked dị irè na-ejedebe site na ikike ịbanye nke ọkụ elektrọn n'oge radieshọn. Radieshọn na-eduga na mmepụta nke gas na ụfụfụ, nke bara uru maka njikọ-cross-njikọ nke ngwaahịa dị gịrịgịrị mana na-egbochi ojiji nke eriri dị arọ.
(3) Ihe mkpuchi Ethylene-Vinyl Acetate Copolymer (XL-EVA) nke ejiri Cross-Linked:
Ka ọchịchọ maka nchekwa eriri na-abawanye, mmepe nke eriri njikọ ọkụ na-anaghị ere ọkụ nke ...
A na-ejikarị resin EVA nwere ọdịnaya vinyl acetate nke ihe dị ka 12% ruo 24% eme ihe na mkpuchi waya na waya. N'ime ngwa waya n'ezie, a na-agwakọta EVA na PE, PVC, PP, na ihe ndị ọzọ iji gbanwee arụmọrụ nke oyi akwa mkpuchi eriri. Ihe ndị mejupụtara EVA nwere ike ịkwalite njikọ eriri, na-eme ka arụmọrụ eriri dịkwuo mma mgbe ejikọtara ya na ibe ya.
(4) Ihe mkpuchi Ethylene-Propylene-Diene Monomer (XL-EPDM) nke ejiri Cross-Linked:
XL-EPDM bụ terpolymer nke e ji ethylene, propylene, na monomers diene na-abụghị nke jikọtara ọnụ mee, nke jikọtara site na radieshon. Waya XL-EPDM na-ejikọta uru nke waya polyolefin-insulated na waya ndị a na-akpọ roba insulated:
1. Mgbanwe, iguzogide, enweghị nrapara n'oge okpomọkụ dị elu, iguzogide ịka nká ogologo oge, na iguzogide ihu igwe siri ike (-60°C ruo 125°C).
2. Mgbochi Ozone, iguzogide UV, arụmọrụ mkpuchi eletriki, na iguzogide nchara kemịkalụ.
3. Nguzogide mmanụ na ihe mgbaze dị ka mkpuchi roba chloroprene nke a na-ejikarị eme ihe. Enwere ike iji ngwa nhazi ihe na-ekpo ọkụ na-emepụta ya, nke na-eme ka ọ dị ọnụ ala.
Eriri XL-EPDM nwere ọtụtụ ọrụ dị iche iche, gụnyere mana ejedebeghị na eriri ike voltaji dị ala, eriri ụgbọ mmiri, eriri ọkụ ụgbọ ala, eriri njikwa maka compressor friji, eriri mkpanaka igwu ala, akụrụngwa igwu ala, na ngwaọrụ ahụike.
Isi ihe ọghọm nke eriri XL-EPDM gụnyere adịghị ike iguzogide anya mmiri na ihe ndị na-anaghị ejide onwe ha na-adịghị ike, nke nwere ike imetụta nhazi na-esote.
(5) Ihe mkpuchi rọba silikọn
Rọba silikọn nwere ike ịgbanwe agbanwe ma na-eguzogide ozone, mwepụ corona, na ire ọkụ nke ọma, nke na-eme ka ọ bụrụ ihe kacha mma maka mkpuchi eletriki. Ọrụ ya bụ isi n'ụlọ ọrụ eletriki bụ maka waya na waya. Waya rọba silikọn na waya dabara nke ọma maka ojiji na gburugburu okpomọkụ dị elu na nke siri ike, yana ndụ dị ogologo karịa waya ọkọlọtọ. Ngwa ndị a na-ejikarị eme ihe gụnyere moto okpomọkụ dị elu, transformers, jenerato, ngwa eletrọniki na eletriki, waya mgbanye ọkụ na ụgbọ njem, na waya ike na njikwa mmiri.
Ugbu a, a na-ejikarị waya silicone nke e ji roba kpuchie na-ejikọta eriri site na iji nrụgide ikuku na ikuku ọkụ ma ọ bụ steam dị elu. Enwerekwa nnyocha na-aga n'ihu gbasara iji electron beam radieshon maka roba silicone na-ejikọ ibe ya, ọ bụ ezie na ọ kabeghị ebe niile n'ụlọ ọrụ eriri. Site na ọganihu ndị na-adịbeghị anya na teknụzụ radieshon cross-linking, ọ na-enye ihe ọzọ dị ọnụ ala, dị irè karị, na nke na-adịghị ize ndụ maka ihe mkpuchi roba silicone. Site na radieshon electron beam ma ọ bụ isi iyi radieshon ndị ọzọ, enwere ike nweta njikọ dị irè nke mkpuchi roba silicone ma na-enye ohere ijikwa omimi na ogo nke njikọ ibe iji mezuo ihe achọrọ maka ngwa.
Ya mere, iji teknụzụ njikọ radieshọn maka ihe mkpuchi roba silicone nwere nnukwu nkwa n'ụlọ ọrụ waya na eriri waya. A na-atụ anya na teknụzụ a ga-ebelata ọnụ ahịa mmepụta, melite arụmọrụ mmepụta, ma nye aka belata mmetụta ọjọọ gburugburu ebe obibi. Mgbalị nyocha na mmepe n'ọdịnihu nwere ike ịkwalite iji teknụzụ njikọ radieshọn maka ihe mkpuchi roba silicone, na-eme ka ha dịkwuo mma maka imepụta waya na eriri dị elu na ụlọ ọrụ eletriki. Nke a ga-enye ngwọta a pụrụ ịtụkwasị obi na nke na-adịgide adịgide maka ebe dị iche iche eji eme ihe.
Oge ozi: Sep-28-2023